Propulsion means



Aug. 27, 1935. s. KISS PROPULSION MEANS 7 Filed Nov. 19, 1954 2Sheets-Sheet l v Invenior Steve Kiss Wm!- y flllomey Aug. 27, 1935. s.KISS PROPULSION MEANS 2 Sheets-Sheet 2 Filed Nov. 19, 1934 InventorPatented Aug. 1935 l PRoPULsIomMiiANs Steve Kissjll iiiami, Fla.,assignorof ensarm; JuliusJ. Samson, Miami, Fla.: i

Applicafimmvember 934,;Serial No. 753:72 f

2 Claims. (c1.1'70 f-f1 e 1 a This invention appertains' tonevv anduseful improvements inf-propellers of the screwtype'yi The principal,object of the present invention.

isto provide a propeller of the screw type having spirally disposedblades mounted on a revolving shell and which can be employed for use oneither air or marine vessels.

Another important object of the invention is tov provide a propeller ofthe spiral blade type, constructed in such manner as to promotesmoothness in operation and relief of a considerable amount of thestrain which normally exists on the drive shaft and propeller blades ofconventional type propulsion mechanisms.

Another important object of the inventiori is to rovide a propellerconstructed in such a manner as to permit ready demountability for thepurpose of repair or replacement of parts.

These and various other important objects and advantages of theinvention will become apparent to the reader of the followingspe'ciflca- Figure 3 represents a side elevational view of the shell.

Figure 4 represents a front elevational view of the nose cap.

Figure 5 represents .a fragmentary longitudinal sectional view throughthe drive and driven shafts mounting. e

Figure. 6 represents an enlarged vertical sectional view takensubstantially on the line 65 of Figure 5. I

Figure 7 represents an enlarged fragmentary detailed sectional viewtaken substantiallyon line 1--1 of Figure 5.

Figure 8 represents an enlarged fragmentary: detailed sectional viewtransversely through the propeller blade and supporting shell. e

Referring to the drawings wherein like numerals designate like parts, itwill be seen in Figure 1 that 5 represents thefuselage of an aircraft ofthe monoplane type having a forwardly re- (see Figure 5) extends. Thistube 1 is fixed axially within the nose 6 by struts 8, each end of thetube 1 being provided with a removable adjacent portion of the v header9qbetween which and the adjacent roller; bearing mount ID .a; packing,element Ill is; placeds: y

7; The. drive shaft that connected by theluni-j versalij'ointj 2 ,tothe;usua1"orankshaft;;of the engine (not shown) is denoted by thenumeral I3 and extends throughthe rear header 9 into the tube 1 toterminate withinthe hollow head M of the driven shaft [5.

The last-mentioned end of the drive shaft 13 has a reduced portion 5extending into the pocket I! where it is supported by the roller bearingmount l8, Adjacent the roller bearings 18 are the roller members I 9which are interposed between the drive shaft'l3 and the inner side ofthe enlargement I4 as clearly shown in Figure 'l. A ring 20 isthreadedover apportion ofthe enlarged end M of the driven shaft l5 and isflanged as at 2| circumferentially to hold'the packing 22 in place andpreventdisplacement of the aforementioned roller members l9. -As canbeclearly seen in Figure 6, these roller members l9 ride against theperiphery of the drive shaft l3 and are'carried'by the cam-shaped pocket23 at the inner side of the head [4 of the driven shaft [5. In thismanner afree [wheeling clutch is afforded which will permit.

the propeller to rotate independently engineand drive shaft [3.

The drive shaft l3 has a thrust collar 24 for engaging the rear rollermount I I3 while the for- Of the ward end portion 'of the driven shaftl5'is pro-' vided with a reduced extension 25 defining a:

shoulder 26 which abuts the forward roller loear-' ing mount Hi.'Interposed between the roller bearing mount 21 which supports therear'end portion of the driven shaft I5, and the'head M of the shaftl5'is a ball bearing thrust mount 28 The propeller proper includes'abullet-shaped shell 29 through the bore 30 in the reduced end of whichextends the reduced portion 25 of the disposed bridge members A, each ofwhich is provided with an out-turned flange B at one lon rivets, "can bedisposed for securing the-same to the reducedend portion of the shell29. The

driven shaft IS. The shell 29 is provided with spirally-disposedslot-ways 3|, leaving spirally 45, 'f gitudinal edge and an inturnedflange G' at its I cap 34 is provided with spirally disposed flanges 36to. which the forward end'extensions of the blade 32 canbe secured. Thecap 34 is provided with a hub S'Iwhich isprovided with a key slot 2 '38at its inner side which can be meshed with a wardly tapering shell, aconical-shaped cap for key slot on the reduced portion 25 of the drivenshaft and keyed to positively connect the driven shaft l5 withthe cap34, to the end that the cap 34 will rotate the shell 29 which carriesthe propeller blade 32; 7; Z

Obviously, a" propeller constructed in accordance with the foregoingspecification will be more desirable than the elongated outstandingscrew siderable vibration to'the craft. ;This;vibrati on is scarcelynoticeable in a "craft equipped with the propulsion means hereindescribed.

' Obviously, when two of these propellers 'are' employed injuxtaposition, they are constructed -with the blades disposed in,opposite spiral direction, so that any te'ndencyiof the-craft as regardsdeviation will be neutralized. r

While the foregoing specification sets forth the I invention'in specificterms, it is to be understood that numerous changes in the shape, sizeand materials may be resorted to without departing from thespirit andscope of the invention as claimed hereinafter.

Whatisclaimed is:-- o

1 A propeller comprising an elongated forthe flanges "on the shell,said-blades'b eing extended forwardly and connected to the flanges onthe can.

type propeller which in operation imparts con-, -I f 2. Alpropellercomprising an elongated forwardly tapering shell, a conical-shaped capfor the reduced end of the shell, drive means connected to the cap,spirally disposed flanges-onthe s'helLflan'ges on the said cap alignedwith the spiral flanges on the shell,"and blades secured to STEVE KISS;25

